Lesson 4 - System software Flashcards
1
Q
What does BIOS stand for?
A
-Basic input and output -software/system
2
Q
What is interrupting software?
A
-A safe way to exit what you are doing.
3
Q
What is managing memory?
A
- Called fair share in memory
- It allocates cetains sections ofmemory tor different processes.
- This is decided by the operating system.
4
Q
What is paging?
A
- The memory is split up into eaul sized chunks and each section is called a page.
- Each program is allocated a certain number of pages
- Has grid like structure
- Pages can be easily swapped between virtual memory and main memory
5
Q
What is segmentation?
A
- It is faster than paging
- You can copy whole segments into cache.
6
Q
What is the “heap” in segmentation?
A
-It is a general purpose part of memory.
7
Q
What is “stack” in segmentation?
A
-A place wher eyou store the functions in the page
8
Q
What is virtual memory?
A
-If an application is not being used it is copied into the page file.
9
Q
What is diskthrashing?
A
-When pages are constantly beging changed from memory into ram.
10
Q
How does RAM reduce seek time?
A
-It is electronic - so it is very fast.
